When it comes to the millions of dollars involved in smuggling drugs, even coked out dealers can tackle a big, complicated project. Recently, Colombian marines seized a homemade fiberglass submarine big enough to hold 4 crew members and 12 metric tons of cocaine —making it one of the largest such crafts found. Since the sub never saw action on the Pacific, there is no telling whether or not it would have actually worked. Still, if you had to die a slow death at the bottom of the sea, this would be the vessel to do it in. [Reuters]